supply of single stage lpg regulator with adopter ( ball valve forged, vertically mounted ) conforming to specification is: 6901-2009 ( iso2503- 19 98 ) . detailed specification 1. max inlet pressure 25 bar 2.outlet pressure 0 to 4 bar 3. inlet connection 0.860x1 / 4 inches lh 4.outlet connection g 3 / 8 i nches lh 5.no of gauges -2 6. guarantee: 12 months replacement guarantee against manufacturing defects. make: gce uni-control model no.0783 979 / messer tornado model part no.ms77053941 / esab / swc ( star welding company ) / hmp ( hind medico product ) makes only with isi mark. n ote: 1 ) the firm should be either oem or an authorized dealer of the oem. 2 ) copy of the valid authorized dealership certificate issued by oem sho uld be attached along with the offer in the tender. 3 ) test certificate should be supplied along with material supply [ warranty period: 12 months after the date of delivery ] => limited